RELIABLE, COST-SAVING, LEASED-LINE ALTERNATIVES
for Field Area Networks
Reliable, Cost-Saving, Leased-Line Alternatives for Field Area Networks 2
TO DELIVER ESSENTIAL SERVICES, YOU NEED RELIABLE, SECURE COMMUNICATIONS
that deliver greater diversity, scalability, and capacity even as budgets tighten.
Cambium Networks’ fixed wireless broadband solutions provide an attractive ROI
for electric utilities when replacing leased-lines for:
• Redundant backbone IP network rings
• Smart meter and distribution automation aggregation transport
• Transport for substation and distribution SCADA data
• Remote office connectivity
• Mobile WiFi connectivity in substations and operation centers
By owning and operating
a wireless broadband
a utility can significantly reduce
business communications OPEX
while tailoring the network to
meet the exact needs of the
business. Without the time
and cost of interacting with
a communications service provider, a business communications infrastructure can
be deployed faster and provide higher reliability, throughput, and security.
• Escalating Costs as Bandwidth Needs Expand: Fees for leased-line services can cost
from a few hundred dollars per month for a single T1/E1 connections to thousands of
dollars per month for gigabit service. As a result, many organizations that have relied
on leased-lines are paying expensive lease d line charges every month with multi-year
• End of Life for 4-Wire Analog Circuits: Telecom utilities are preparing for the end
of the public switched telephone network. Service providers are dramatically
raising the prices of 4-wire analog circuits that are often used to provide SCADA
communications to relay tele-protection services for electric utilities. The replace-
ment options being offered for these circuits are very expensive with high installa-
tion and ongoing service fees. Utilities have the opportunity to replace these analog
circuits while they are still supported.
• Loss of Control: Leased-lines essentially diminish internal control by making
organizations dependent on an outside party for important business functions.
Many IT organizations prefer to maintain local control over their network operations.
In that way, problems can be quickly diagnosed and resolved, and upgrades can be
performed without having to wait for an outside party to respond.
• Reduced Reliability: In many instances, the reliability of leased-lines is not what it
should be, especially in rural and remote areas. When a natural disaster such as an
earthquake, flood, or storm hits, telephone lines are particularly vulnerable to service
interruption at a time when communications are most critical.
• High TCO: Typically, deployment of new services or upgrades in a leased-line
environment is both expensive and slow. The cost and manpower required to
manage and monitor contracts and service-level agreements, including verifying
billing records, can be significant.
In many cases, leased-lines are an expense not worth paying and a risk not worth taking.
Reliable, Cost-Saving, Leased-Line Alternatives for Field Area Networks 3
Cambium Networks Wireless Broadband – A Proven Alternative
A growing number of utilities are discovering the benefits of strategically replacing
leased-lines with wireless broadband communications. Point-to-Point (PTP) and
Point-to-Multipoint (PMP) wireless broadband solutions from Cambium Networks are
proven to deliver substantial advantages.
1. Utilities can eliminate or significantly reduce monthly lease fees.
2. Overall network performance can be upgraded for the core infrastructure ring,
smart meter aggregation backhaul, and transport for substation and distribution
3. There is now a viable means to connect remote offices with voice, video
surveillance, and data connectivity.
4. Network reliability and security is improved and under positive control.
In many networks, local-access is the most problematic point of network congestion.
Wireless broadband can provide a stable, high-performance platform to ease local-access
bottlenecks. Wireless also enables agile and flexible bandwidth provisioning that can
be easily and quickly scaled up or down to match dynamic traffic patterns. Cambium’s
technology is able
to increase reliability
and connect remote,
quality of service.
EXAMPLES OF LEASED-LINE CHARGES
Type Throughput (Mbps) Typical Monthly Cost
Typical 2yr Contractual
T1 / E1
1.544/2.048 $100 - $200 $2.4K-$4.8K
10 Mbps x 10 Mbps Symmetrical 100 x 100 $200 - $300 $4.8K - $7.2K
100 Mbs x 100 Mbs Symmetrical 100 x 100 $800 - $1K $19.2K - $24K
PTP 650 WIRELESS BROADBAND TRANSPORT LINK COMPARISON
4 Month ROI Annual Savings of $7,200Higher Throughput
ROI #1 - PTP LEASED-LINE REPLACEMENT*
ROI Factor 10 Mbps x 10 Mbps
Max Throughput 100 x 100 Up to 450
Estimated Monthly Fee $600 $0
First Year Total Cost $8,200 $5,000
Ongoing Annual Fees $12,000 0
4 TO 6 MONTH ROI + ANNUAL SAVINGS
OF $7,200 + HIGHER THROUGHPUT
ROI #2 - PMP 450 LEASED-LINE REPLACEMENT*
(Using 1 AP and 3 SMs to replace 3 T1/E1 Lines)
ROI Factor 3 T1 Leased-Lines PMP 450
Max Throughput 1.5 per T1
Estimated Monthly Fee $600
(3 at $200 each)
$1,050 (3 at $350
First Year Total Cost $8,250 $4,500
Ongoing Annual Fees $7,200 0
6 MONTH ROI + ANNUAL SAVINGS
OF $7,200 + HIGHER THROUGHPUT
Leased-Line Replacement ROI Model
*All values are in USD. Actual costs and savings may vary based on individual usage, application, environmental, and network requirements.
Reliable, Cost-Saving, Leased-Line Alternatives for Field Area Networks 4
PTP 820 Licensed Microwave Point-to-Point Link
• Up to 1.66 Gbps throughput
• All-outdoor, split-mount, or indoor solutions
PTP 650 Unlicensed Backhaul Point-to-Point Link
• Up to 450 Mbps throughput
• Up to 155 miles (250 km) range
• IP 66/67 rated
PTP 450i Licensed or Unlicensed Backhaul
• Up to 130 Mbps throughput
• Up to 128 miles (200 km) range
PMP 450i Licensed or Unlicensed Point-to-Multipoint
• Up to 125 Mbps total throughput serving up
to 200 end point locations
• Up to 25 miles (40 km) range
No utility can afford to have communications interrupted by a network failure when a
natural disaster strikes. It can take hours or even days for wired networks to be repaired.
Fixed wireless broadband solutions offer the ability to plan and deploy redundant
networks in a matter of days—at a cost that is a fraction of a wired backup.
Licensed and Unlicensed Spectrum
Leverage the investment in licensed spectrum where needed in populated areas,
while gaining the best use of the unlicensed spectrum in rural and remote locations,
to minimize total spectrum cost.
Maintain system availability and minimize cyber threats with a rich set of features
to encrypt the traffic, secure the management, and audit the changes in the
A fixed wireless network can be deployed in a fraction of the time it would take to
order and provision new leased-line services. And adding new services and upgrades
can normally be accomplished in a day or less.
Total Cost of Ownership
Minimize the total cost of network ownership with one IP-based wireless network
comprised of licensed and unlicensed backhaul and access components that can
be rapidly deployed and perform reliably with minimum maintenance cost.
Wireless Broadband Solutions for Utilities:
Cambium Networks and the stylized circular logo are trademarks of Cambium Networks, Ltd.
All other trademarks are the property of their respective owners.
© Copyright 2016 Cambium Networks, Ltd. All rights reserved.
Cambium Networks is a leading global provider of wireless broadband solutions
that connect the unconnected. Through its extensive portfolio of reliable, scalable,
and secure wireless broadband communications transport solutions managed by
cloud-based software, Cambium Networks makes it possible for electric utilities to
build powerful communications networks that scale to support grid communications
now and into the future.